PARIS-Serbia has limited tennis infrastructure and little state support for the sport. It also has three singles players left in the French Open.

Jelena Jankovic and Ana Ivanovic advanced to the French Open semifinals for the first time with victories Tuesday, and Novak Djokovic will join them if he beats No. 125th-ranked Igor Andreev in the men's quarterfinals Wednesday.

Last week, Janko Tipsarevic of Serbia beat former top-ranked Marat Safin to make the third round.

"Wherever you go, it's just Serbians all over the place, winning all these matches," the fourth-seeded Jankovic said after beating Nicole Vaidisova 6-3, 7-5. "It's just incredible."

The Serbs have been approached to play for other countries, Djokovic for Britain, Ivanovic for Switzerland, and Jankovic for the United States. All declined, despite obstacles facing budding tennis talent in Serbia.

The war-wracked nation of 8 million touts a modest tennis tradition aside from nine-time Grand Slam champion Monica Seles, who was born in Novi Sad but is an ethnic Hungarian and an American citizen.

"All that we have in tennis here came from mud, from nothing," Tipsarevic said.